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#include "moonlight.hpp"
#include "ppapi/c/ppb_gamepad.h"
#include <Limelight.h>
static const unsigned short k_StandardGamepadButtonMapping[] = {
A_FLAG, B_FLAG, X_FLAG, Y_FLAG,
LB_FLAG, RB_FLAG,
0, 0, // Triggers
BACK_FLAG, PLAY_FLAG,
LS_CLK_FLAG, RS_CLK_FLAG,
UP_FLAG, DOWN_FLAG, LEFT_FLAG, RIGHT_FLAG,
SPECIAL_FLAG
};
static const unsigned int k_StandardGamepadTriggerButtonIndexes[] = {
6, 7
};
void MoonlightInstance::PollGamepads() {
PP_GamepadsSampleData gamepadData;
short controllerIndex = 0;
m_GamepadApi->Sample(pp_instance(), &gamepadData);
for (unsigned int p = 0; p < gamepadData.length; p++) {
PP_GamepadSampleData& padData = gamepadData.items[p];
if (!padData.connected) {
// Not connected
continue;
}
if (padData.timestamp == 0) {
// On some platforms, Chrome returns "connected" pads that
// really aren't, so timestamp stays at zero. To work around this,
// we'll only count gamepads that have a non-zero timestamp in our
// controller index.
continue;
}
if (padData.timestamp == m_LastPadTimestamps[p]) {
// No change from last poll, but this controller is still valid
// so we skip this index.
controllerIndex++;
continue;
}
m_LastPadTimestamps[p] = padData.timestamp;
short buttonFlags = 0;
unsigned char leftTrigger = 0, rightTrigger = 0;
short leftStickX = 0, leftStickY = 0;
short rightStickX = 0, rightStickY = 0;
// Handle buttons and triggers
for (unsigned int i = 0; i < padData.buttons_length; i++) {
if (i >= sizeof(k_StandardGamepadButtonMapping) / sizeof(k_StandardGamepadButtonMapping[0])) {
// Ignore unmapped buttons
break;
}
// Handle triggers first
if (i == k_StandardGamepadTriggerButtonIndexes[0]) {
leftTrigger = padData.buttons[i] * 0xFF;
}
else if (i == k_StandardGamepadTriggerButtonIndexes[1]) {
rightTrigger = padData.buttons[i] * 0xFF;
}
// Now normal buttons
else if (padData.buttons[i] > 0.5f) {
buttonFlags |= k_StandardGamepadButtonMapping[i];
}
}
// Get left stick values
if (padData.axes_length >= 2) {
leftStickX = padData.axes[0] * 0x7FFF;
leftStickY = -padData.axes[1] * 0x7FFF;
}
// Get right stick values
if (padData.axes_length >= 4) {
rightStickX = padData.axes[2] * 0x7FFF;
rightStickY = -padData.axes[3] * 0x7FFF;
}
LiSendMultiControllerEvent(controllerIndex, buttonFlags, leftTrigger, rightTrigger,
leftStickX, leftStickY, rightStickX, rightStickY);
controllerIndex++;
}
}